Absolute Zero is the point at which scientists believe all molecular motion stops. (Remember that we learned how matter is always in motion? Well, the idea is that wouldn't be true at absolute zero.

There is a great Nova special (PBS) and companion website about Absolute Zero. Here's the link, where you can actually watch the program online and explore some other great information.

Link to Absolute Zero PBS Site

Hey Tyler,
You were on to something! Here's a link to information about Absolute Hot!
Absolute Hot -- PBS
Warning -- my head was spinning after I read this. :)
my head was spining 2